I clean my Oasis cool pass over plastic baffled box humidifier, which I use instead of a designated humidifier with my AutoPap, a ResMed S9, with a bit of white vinegar and three drops of baby shampoo in the water. Be sure you rinse it well. Insist on a hypoallergenic filter (which you can not see through) for your machine. It will filter better and help maintain the life of your machine.

Huge question: Does your ResMed 11 stink of plastic or other toxic odor? The new ResMeds I’ve looked at and tried in my DME’s office stank. That’s why I’m still using my 8 year old one. Don’t let them tell you it’s like a new car odor and the stink will go away. It won’t! Once I had a plastic odor CPAP and it always stank the whole five years I used it.

My reasoning: a hematologist said “environmental benzene” can be a factor in causing MGUS, which I’ve been monitoring for 7 years. Want to be certain I’m not inhaling that foreign chemical so I refuse to accept any AUTOPAP (APAP) which blows chemical/plastic odorous air into my lungs.

Therefore I keep my ResMed S9 and have two refurbished ones around as back-ups in case it dies. Hope this helps you! Good luck!